Isomeric effects in rod-shaped Au20 clusters: a comparative study on near-infrared photothermal enhancement
文献类型： 外文期刊
作者： Wu, Minjian;Qin, Lin;Wang, Linhua;Jiang, Zihao;Bai, Penghao;Yao, Liao-Yuan;Yang, Guo-Yu
作者机构：
期刊名称： MATERIALS HORIZONS
ISSN： 2051-6347
年卷期： 2025 年
页码：
收录情况： SCIE（2025版） ; ; EI（2025版）
摘要： In this work, we report two rod-shaped Au20 clusters with distinct core configurations and 14 free electrons, offering an important atomically precise model to probe structure-property relationships. A key finding is that ligand-tuned shortening of Au-Au bonds and a slight structure distortion within the cluster core decisively enhance photothermal conversion efficiency and tune NIR-II emission. The most compact Au20 architecture achieves a photothermal conversion efficiency of 25% and extends emission into the NIR-II window at 1190 nm. These results establish bond-length engineering as a powerful and generalizable design principle for tuning the functional properties of atomically precise metal nanoclusters, opening new avenues for the development of high-performance photothermal and luminescent materials.
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